a9nlillshaz a9nlillshaz

02-12-2016
Mathematics

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The minute hand of a clock is 9.5cm long. how far will the tip of the hand travel in one day

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apologiabiology apologiabiology

02-12-2016

24 hours, so 24 rorations

find teh circumference
c=2pir
c=2pi9.5
c=19pi

24 hours
19pi times 24=456pi cm per day aprox
1432.565952cm

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(14.007 g/mol + 3.02 g/mol)(8.60791 mol)